Revelation 16:4

And the third poured out his bowl into the rivers and fountains of waters; and it became blood.

Revelation 8:10-11

And the third angel sounded; and there fell out of the heaven a great star, burning as a torch, and it fell on the third part of the rivers, and upon the fountains of the waters.

Revelation 14:7

saying with a great voice, "Fear God, and give glory to Him, because the hour of His judgment came; and worship Him Who made the heaven, and the earth, and the sea, and fountains of waters."

Revelation 16:5

And I heard the angel of the waters, saying, "Righteous art Thou, Who art, and Who wast, the Holy One, because Thou didst thus judge;

Treasury of Scripture Knowledge

Summary

And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.

Bible References

Upon

Revelation 8:10
And the third angel sounded; and there fell out of the heaven a great star, burning as a torch, and it fell on the third part of the rivers, and upon the fountains of the waters.